TALLER GEARS FOR A BORG WARNER 9 BOLT?
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Joined: Aug 2008
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TALLER GEARS FOR A BORG WARNER 9 BOLT?
I have an '89 IROC-Z with the 350 tuned port in it, mostly stock. It has the standard Borg Warner 9 bolt rear end with 2.77 gears. I was wondering if there was any taller gear sets out there for that rear end? So far I haven't been able to find any. Please let me know.
Joined: Mar 2005
Posts: 615
Likes: 27
From: Austin TX
Car: 89 Formula
Engine: 383 SBC/HSR
Transmission: 700R4
Axle/Gears: 3.73
Re: TALLER GEARS FOR A BORG WARNER 9 BOLT?
The carrier would need to be changed to be able to lower your gears, I just noticed that. I believe you have a 2-series carrier. Last edited by heat seeker; Oct 3, 2008 at 02:31 PM. Reason: Automerged Doublepost
Joined: Feb 2006
Posts: 767
Likes: 10
From: USA
Engine: 350 TBI W/all Ultimate TBI Mods
Transmission: 700R4 Stage 4
Axle/Gears: 9 Bolt 3.27
Re: TALLER GEARS FOR A BORG WARNER 9 BOLT?
www.9bolt.com
http://ratech.stores.yahoo.net/79bogmax.html
Between these two you should be fine!
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Do a quick search for 9 bolt on here. There was a thread not too long ago that listed a few more sites to get parts.
http://ratech.stores.yahoo.net/79bogmax.html
Between these two you should be fine!
----------
Do a quick search for 9 bolt on here. There was a thread not too long ago that listed a few more sites to get parts.
Last edited by dctrumpet; Oct 3, 2008 at 02:35 PM. Reason: Automerged Doublepost
Joined: Apr 2002
Posts: 373
Likes: 0
From: louisville, co
Car: 86 T/A
Engine: 383
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
Re: TALLER GEARS FOR A BORG WARNER 9 BOLT?
The 3.27 would be a series-3 carrier. You can also find ring and pinion sets at Randys Ring & Pinion: http://www.ringpinion.com/PartsList....b-Differential
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Joined: May 2008
Posts: 286
Likes: 1
From: Cicero, IL.
Car: 1987 Pontiac Firebird Trans Am WS6
Engine: SBC 350
Transmission: T-56
Axle/Gears: 3.70:1 BW M78 9-Bolt Posi
Re: TALLER GEARS FOR A BORG WARNER 9 BOLT?
MotiveGear.com has BRAND NEW ring and pinion sets for the Borg-Warner 9 bolt. I just bought a 3.7 set.
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iTrader: (1)
Joined: Oct 2005
Posts: 245
Likes: 1
From: Troy, Ohio
Car: 1987 Trans Am
Engine: 383
Transmission: TH400
Axle/Gears: 9 bolt 4.11
Re: TALLER GEARS FOR A BORG WARNER 9 BOLT?
They carry 3.89's also...Which I may try to get and pull these 4.10's back out to sell...I'm going through the traps @ 122mph @ 6600 and I still want to spray a ton more.
Supreme Member
Joined: Dec 1999
Posts: 1,934
Likes: 1
From: Calgary
Car: 89 Formula
Engine: 350
Transmission: TH 700R4
Axle/Gears: 3.27
Re: TALLER GEARS FOR A BORG WARNER 9 BOLT?
just an FYI---taller means lower numerically. (ie 2.56 are taller then your 2.77)
Shorter mean higher numerically which is what you want.
Shorter mean higher numerically which is what you want.
Re: TALLER GEARS FOR A BORG WARNER 9 BOLT?
Check these guys out...
JT Differentials
I got my rebuild kit along with my 3.70 Motive/Yukon gears from these guys, ask for Jeremy. Great to deal with and fast shipping.
JT Differentials
I got my rebuild kit along with my 3.70 Motive/Yukon gears from these guys, ask for Jeremy. Great to deal with and fast shipping.
Senior Member
Joined: Apr 2006
Posts: 836
Likes: 0
From: Pgh PA
Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: TALLER GEARS FOR A BORG WARNER 9 BOLT?
Wow 9bolt.com is back up! Posi cones! Excellent!
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iTrader: (12)
Joined: Jul 1999
Posts: 12,212
Likes: 13
From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: TALLER GEARS FOR A BORG WARNER 9 BOLT?
Maybe he wants top end speed? With a 6-speed, tall gears still feel good around town.
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